Release Enterprise/extractor license for the 2nd time - uninstall
Release Enterprise license for the 2nd time - uninstall
If the license was released less than a week ago, execute the

ZKUninstaller.exe
from one of your computers with the latest version, copy it to C:\Windows\SysWOW64 and run it again as administrator of the computer from which it was removed.
Uninstall software
zktime
extractor